Dabbsson DBS420S 420W Foldable Portable Solar Panel

24th of 39 we've scored in Portable Solar Panels

24th of 39 in Portable Panels

Dabbsson DBS420S 420W Foldable Portable Solar Panel

400 W or more panel
1-year warranty

SVT Score, Mid

Usability4.9/10Social4.3/10The SVT Score is placed on its category's range

Versus

SVT SCORESRead review

A 420 W four-fold ETFE panel with a kickstand, an IP65 rating and a 48.9 V MC4 output, weighing 33 lb, for large power stations that take high-voltage solar input.

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SKU: USOWDBS420S-B-US001 Category: Portable Solar Panels Brand: Dabbsson

Usability

4.9 out of 10

Capacity10420 W rated, on the 400 W and over rung for portable panels

Electrical: 40.3 V and 10.4 A at maximum power, 48.9 V open circuit, 11.4 A short circuit

Efficiency1019.3 percent computed from the manual's 2338 x 930 mm, on the 18 percent and over rung

Marketed: cell efficiency of up to 23.4 percent, against the computed module figure
Size: the product page gives 2495 x 917 mm unfolded, which works out to 18.4 percent, the same rung

Lifespan1No power-output warranty on the product page, in the policy or in the manual

Better on lifespanRich Solar MEGA 200 Briefcase PanelRich Solar's spec sheet promises a 25-year output warranty. $399.99Scores 7.0

Features4IP65, ETFE front and kickstand; no diode count and no station adapter in the box

Range: rated to run from −4 to 140 °F (−20 to 60 °C) on the page and in the manual
Input: its open-circuit voltage needs a station whose solar input accepts it

Better on featuresEcoFlow NextGen 220W Bifacial Portable Solar PanelIs rated IP68. $399Scores 9.0

Verification2no directory record for the DBS420S; the manual carries only a self-declared EU declaration (RED, RoHS, REACH).

Searched: Intertek UL TÜV SÜD Certipedia CEC LabTest

Better on verificationAnker SOLIX PS400 Bifacial$699.99Scores 4.0

Warranty & Support112 months in Dabbsson's warranty policy, with 12 more on registration

Conflict: the product page's spec table and the manual say 24 months from purchase
Sellers: the policy covers units bought from dabbsson.com or its authorized sellers

Better on warranty & supportJackery SolarSaga 500 X Bifacial Portable Solar PanelThe product page. $799Scores 6.0

Price

List: $599.00 at dabbsson.com

Summary

Big output in one Panel, short cover

What it is: a 420 W four-fold panel of monocrystalline cells under ETFE, with a kickstand and an MC4 lead
The trade-off: high output and strong computed efficiency, but only IP65, 33 lb to carry and a 12-month base warranty
Not checked: the temperature coefficient and bypass diodes; Dabbsson publishes neither for this panel
Look elsewhere for: a full waterproof rating, an output guarantee or a lighter panel

Strengths

High output from a single panel
Module efficiency well above the typical folding panel
Scratch-resistant ETFE front
Kickstand sets the angle
Zippered pouch for cables

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Drawbacks

No power-output warranty
Short base warrantydoubled only on registration
Warranty terms disagree across the brand's own pages
Splash rating onlynot waterproof
Heavy and large to deploy
Size differs between manual and product page

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Social score

4.3 out of 10

RedditNot scored

The Reddit pool is blank: no Reddit thread or comment found reviews a Dabbsson solar panel, and owners there discuss its stations only (October 2026).

GoogleBrand-level5 out of 10

CleanTechnica: Dabbsson's earlier 200 W folding panel (DBS200S) fed a DBS2300 station between 100 and 210 W depending on time of day and sun angle, and it called the pairing extremely effective (May 2023)
Ties: Dabbsson provided the panel and the station for the review, and CleanTechnica uses affiliate links (May 2023)

YouTubeBrand-level4 out of 10

Solarpunk Steve: ran a DBS1400 Pro station from Dabbsson's 420 W folding panels through two hurricane outages at his lawn care business; no measured solar figure was found (October 2024, about 15,500 views)
Ties: links the panel through Amazon affiliate links and commission-tagged Walmart listings sold by Dabbsson's own store (October 2024)

AmazonBrand-level4 out of 10

210 W: Dabbsson's 210 W panel listing on Amazon US (B0CPKS6FR8) holds 3.7 from 10 ratings, 62 percent five-star, 14 percent three-star and 24 percent one-star, with no featured offer (October 2026)
120 W: the 120 W listing (B0FSZ52Q5G, $209.00, sold by Dabbsson-US) holds a single three-star rating (October 2026)

User reviewsNot scored

The retailer pool is blank: Walmart.com's listing of the 420 W panel, now out of stock, holds no ratings, and Home Depot, Lowe's, Best Buy and REI do not carry it (October 2026).

Reviews

Trustpilot rates dabbsson.com 3.7 from a single five-star review on a page claimed in June 2025 that has not invited reviews recently, with no review in the last 12 months (October 2026).

Track record

The BBB has no listing for Dabbsson or its companies (October 2026).
No CPSC or Health Canada recall names any Dabbsson product, its solar panels included, searched in October 2026.

Not countedExcluded

Not counted in any pool: dabbsson.com's own reviews and entries reposted from it, Dabbsson's YouTube channel (@dabbsson_official), its Dabbsson Global Fans Club Facebook group and its staff posts, all first-party.
Also not counted: Dabbsson's affiliate program and its discount codes, its DabCredits rewards, reviews flagged Incentivized at Walmart, and anything gathered in Dabbsson promotions.

Summary

Brand-level

3.7 on Trustpilot, no BBB rating

Specs

CapacityNot applicable
AC OutputNot applicable
System VoltageNot applicable
Panel Power400 W or more
Charge CurrentNot applicable
Safety ListingNone verifiable
Low-Temp ChargingNot applicable
Warranty1 Year
MonitoringNot applicable
Weight33.0 lb

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Not published by Dabbsson: cell type.

At a glance

25.9 x 36.1 x 1.6 in folded
48.9 V open-circuit voltage
Zip pouch on the back

Company

Dabbsson Limited runs dabbsson.com under Hong Kong law, and the DABBSSON mark was filed at the USPTO by Shenzhen Daipusen New Energy Technology Co., Ltd. of Shenzhen, China.
Dabbsson gives its US company address as 2000 E 49th St, Vernon, California.

Where it sells

It sells its four folding and flexible panels, from 120 to 420 W, with a cart at dabbsson.com.
Amazon US lists its 120 W and 210 W panels, and Dabbsson's own Dabbsson-US seller account sells the 120 W. Walmart.com lists the 120 W, 210 W and 420 W panels, all sold by Dabbsson's own marketplace store, Dabbsson Power Station.

Description

The Dabbsson 420W Portable Solar Panel (model DBS420S in its manual, store SKU USOWDBS420S-B-US001) is a four-fold panel of monocrystalline cells under an ETFE front, with a rear kickstand and a zippered accessory pouch.

It is rated 420 W, with 40.3 V and 10.4 A at maximum power, 48.9 V open-circuit and 11.4 A short-circuit, and Dabbsson markets cell efficiency of up to 23.4%.

The manual gives it 2338 x 930 mm unfolded and 590 x 930 x 50 mm folded; the product page gives 98.2 x 36.1 in (2495 x 917 mm) unfolded and 25.9 x 36.1 x 1.6 in folded. It weighs 33 lb (15 kg). It is rated IP65, ends in an MC4 connector, and is rated to run from −4 to 140 °F (−20 to 60 °C).

The box holds the panel and the manual; the manual's MC4 6-in-1 station cable is sold separately. Dabbsson's warranty policy gives 12 months plus 12 on registration, while the spec table and the manual say 24 months. It sells at $599.00 on dabbsson.com.